I received my celiac test results today, and my doctor wasn't very helpful in explaining any of it. I have an appointment with a GI in a couple weeks, but was hoping to get some insight before then. My doctor said I was positive for celiac, which kind of surprised me because I have not had an endoscopy.
As background, my daughter has celiac disease, confirmed with an endoscopy. I eat mostly gluten free at home, but have been trying to eat gluten in the weeks leading up to my test. I am not sure if I ate enough gluten, though. Some days I would eat a slice of regular bread, or maybe a handful of pretzels, or some crackers with gluten. If I was at a restaurant, I would order a regular meal with gluten (such as a hamburger with a bun), but I don't go out often. Here are my test results:
tTG IgA <1.2 (negative <4)
tTG IgG 23.8 (Positive >9) The comment after this one said, "tTG antibody, especially the IgA, is sensitive and specific for untreated Celiac Disease. The IgG assay is used mainly to detect celiac patients who are IgA deficient. Verified my repeat analysis." However, looking at my IgA level below, it doesn't seem as though I am IgA deficient, right?
Gliadin Ab, IgA (DGP) 3.7 (negative <20)
Gliadin Ab, IgG (DGP) 2.2 (negative <20)
IgA 166 (range 71-397)
Is it odd that my IgG levels were positive on one test and negative on the other? Should I eat lots more gluten before my next appointment?